20B-3 (31,75 x 19,56 mm) triplex

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Article	z	De	Dp	d	D	H	Chain (code)	Designation	P (pitch)	W (internal width)	d (roller)	r	C	h1	L	h2	h3
RT 13038	38	399.6	384.5	180	56	110	20B-3 (31,75 x 19,56 mm)	1_1/4 x 3/4	31.750	19.56	19.05	32	3.5	18.5	18.2	54.6	91.0
RT 13045	45	470.3	455.2	180	56	110	20B-3 (31,75 x 19,56 mm)	1_1/4 x 3/4	31.750	19.56	19.05	32	3.5	18.5	18.2	54.6	91.0
RT 13057	57	591.5	576.4	180	60	125	20B-3 (31,75 x 19,56 mm)	1_1/4 x 3/4	31.750	19.56	19.05	32	3.5	18.5	18.2	54.6	91.0
RT 13076	76	783.5	768.3	200	60	140	20B-3 (31,75 x 19,56 mm)	1_1/4 x 3/4	31.750	19.56	19.05	32	3.5	18.5	18.2	54.6	91.0